Infuse cannot connect to Jellyfin

I’m pulling my hair out a bit here :sweat_smile: Infuse suddenly refuses to connect to my Jellyfin server, while literally every other Jellyfin client (web, official app, etc.) works perfectly. It’s definitely something on the Infuse side.

Quick rundown:

β€’ Jellyfin: 10.11.5 (latest stable) and 10.12.0 (unstable version)

β€’ Infuse: Latest stable version

β€’ Trying to connect directly with server address + username/password over local network (no reverse proxy or anything fancy)

β€’ Infuse just says β€œUnable to connect to the server”

When I look at the Jellyfin logs, I see this every time Infuse tries to log in:

System.ArgumentNullException: Value cannot be null. (Parameter β€˜request.App’)
…
at Emby.Server.Implementations.Session.SessionManager.AuthenticateNewSessionInternal(AuthenticationRequest request, Boolean enforcePassword)
at Jellyfin.Api.Controllers.UserController.AuthenticateUserByName(AuthenticateUserByName request)

Infuse isn’t sending the β€œApp” name in the login request, so Jellyfin rejects it.
I’ve already tried pretty much everything:
β€’ Deleted the server in Infuse, cleared metadata cache, force-quit the app, restarted my Apple TV/iPhone/iPad, re-added the server from scratch, deleted Infuse data in the iCloud.
β€’ Fully uninstalled and reinstalled Infuse
β€’ Restarted the Jellyfin server (clears all sessions)
β€’ Changed the user password
β€’ Tried different accounts
Nothing works. This feels a lot like those compatibility hiccups we had earlier in 2025 when an Infuse update temporarily broke Jellyfin connections.
Anyone else running into this right now? Or any tips from the Firecore team? I’d really appreciate any help
Thanks!

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I am also having bad connections to Jellyfin. It works temporarily - for about a day or so - until it fails to connect or index and I need to completely re-add the server. Very frustrating.

I’m having a similar issue where I can’t connect to my remote server via infuse but literally every other app works. Also of note if I was already connected to the server it works. I just can’t add it as a new server on any of my infuse devices that didn’t already have it.

The upcoming 8.3.6 version of Infuse will add support for logging into Jellyin 10.12 (unstable).

If at some point you have installed 10.12 and then rolled back to 10.11.x there will be a change to a settings file that remains in place and will continue to affect your 10.11.x installation. More info on rolling back this change can be found in this guide.

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Thank you!